JAJSOD3C December   1982  – March 2022 SN54HC257 , SN74HC258

PRODUCTION DATA  

  1. 1 特長
  2. 2 概要
  3. 3 Revision History
  4. 4 Pin Configuration and Functions
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions (1)
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Switching Characteristics
    6. 5.6 Operating Characteristics
  6. 6 Parameter Measurement Information
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
  8. 8 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
  10. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 サポート・リソース
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ（パッケージ｜ピン）
  • PW|16
  • NS|16
  • N|16
  • D|16
サーマルパッド・メカニカル・データ
発注情報

5.5 Switching Characteristics

over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (See Figure 6)
PARAMETER FROM (INPUT) TO (OUTPUT) VCC (V) TA = 25°C SN54HC257 SN74HC257 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Any Y 2 50 100 150 125 ns
4.5 10 20 30 25
6 9 17 25 21
A/B Any Y 2 50 100 150 125
4.5 10 20 30 25
6 9 17 25 21
ten Enable time G Any Y 2 75 150 225 190 ns
4.5 15 30 45 38
6 13 26 38 32
tdis Diable time G Any Y 2 75 150 225 190 ns
4.5 15 30 45 38
6 13 26 38 32
tt Transition time Any Y 2 28 60 90 75 ns
4.5 8 12 18 15
6 6 10 15 13
over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (See Figure 6)
PARAMETER FROM (INPUT) TO (OUTPUT) VCC (V) TA = 25°C SN54HCT257 SN74HC257 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Any Y 2 75 150 245 190 ns
4.5 15 30 45 38
6 13 26 38 32
A/B Any Y 2 75 150 245 190
4.5 15 30 45 38
6 13 26 38 32
ten Enable time G Any Y 2 100 200 300 250 ns
4.5 24 40 60 50
6 18 34 51 43
tt Transition time Any Y 2 45 210 315 265 ns
4.5 17 42 63 53
6 13 36 53 45
over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (See Figure 6)
PARAMETER FROM (INPUT) TO (OUTPUT) VCC (V) TA = 25°C SN54HC258 SN74HC258 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Any Y 2 60 100 150 125 ns
4.5 13 20 30 25
6 12 17 25 21
A/B Any Y 2 60 115 175 145
4.5 13 23 35 29
6 12 20 30 25
ten Enable time G Any Y 2 70 150 225 190 ns
4.5 15 30 45 38
6 13 26 38 32
tdis Diable time G Any Y 2 75 150 225 190 ns
4.5 15 30 45 38
6 13 26 38 32
tt Transition time Any Y 2 28 60 90 75 ns
4.5 8 12 18 15
6 6 10 15 13
over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (See Figure 6)
PARAMETER FROM (INPUT) TO (OUTPUT) VCC (V) TA = 25°C SN54HC258 SN74HC258 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Any Y 2 95 150 245 190 ns
4.5 23 30 45 38
6 21 26 38 32
A/B Any Y 2 95 165 240 210
4.5 23 33 48 42
6 21 28 41 36
ten Enable time G Any Y 2 100 200 300 250 ns
4.5 24 40 60 50
6 18 34 51 43
tt Transition time Any Y 2 45 210 315 265 ns
4.5 17 42 63 53
6 13 36 53 45